Rotatable window construction



Nov. 8, 1938. o. M. EDWARDS 89 ROTATABLE WINDOW CONSTRUCTION Filed Aug. 29, 1936 2 Sheets-Sheet l Nov. s, 1938. Q M, EDwARDg 2,136,289

ROTATABLE WINDOW CONSTRUCTION Filed Aug. 29, 1956 2 Sheets-Sheet 2 2 INVENTOR. 5 2 $7M gm ATTORNEYS.

Patented Nov. 8, 1938 PATENT OFFICE ROTATABLE WINDOW CONSTRUCTION Oliver M. Edward Syracuse, N. Y., assignor to The O. M. Edwards Company, Inc., Syracuse,

N, Y., a corporation Application August 29,

Claims.

This invention relates to window constructions, particularly for vehicles as railway cars, buses, etc., and has for its object a window in which the frame is circular and part-circular sashes mounted in the frame, one being rotatably mounted and having a rotatable opening and closing movement about the axis of the frame into different radial positions.

It further has for its object a window construction in which the rotatable sash frame rotatably mounted with its bearing in the window frame interflts with the window frame bya tongue and groove at the margin of the rotatable sash.

It further has for its object a window construction in which the rotatable part-discoidal or semidiscoidal sash has a marginal portion or frame member complemental to the marginal portion of the rotatable sash or the arcuate sash frame member thereof and also rotatably coacting with the window frame, whereby the rotatable sash has a bearing on the window frame throughout a complete circle.

It further has for its object circular sash frames, at least one of which is rotatably mounted in the window frame, each of the sash frames having transversely extending members or chordal diametrically extending members which normally lap each other, when the rotatable sash is closed.

It also has for its object means for normally locking the rotatable sash consisting of parts carried by the transversely or diametrically extending sash frame member and coacting with the window frame. 4

It further has for its object a circular window frame mountable in a circular window opening which consists of a split circular body ring and a split circular retaining ring having cylindrical flanges which lap each other and annular flanges which grip on the inner and outer faces of the car body around the window opening, with fastening means coacting with the cylindrical flanges for holding the two split rings assembled and to clamp in the window opening.

The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views.

Figures 1 and 2 are respectively opposite face views of the window construction, Figure 2 being shown partly in section.

Figure ,3 is an enlarged sectional view on lines 3-3, Figure 1.

Figure 4 is an enlarged fragmentary view of this window showing a modified construction of the rotatable sash holder from that shown in Figure 2.

of New York 1936, Serial No. 98,560 (01. 189-64) This window construction comprises, generally, a circular window frame, part-discoidal sashes mounted in the frame and complemental to each other, at least one of the sashes being rotatably mounted in the frame and having a rotatable opening and closing movement about the axis of the frame into different radial positions relative to the other sash and the frame.

I designates the car body formed with a circular window opening 2, the car body having inner and outer walls or face plates 3, 4.

5 designates the window frame, which is a ring, split at 6, this having a cylindrical body portion l which extends into the window opening 2 and also an external annular flange 8 and an internal annular flange 9, the flange 8 lapping the margin of the wall of the body around the window opening, that is, it laps the margin of the plate 4. The annular internal flange 9 forms a stop for one of the sash frames.

5 'designates a retaining ring split at W and formed with a cylindrical body portion Ill telescoping over the cylindrical portion 1 of the frame 5 between the cylindrical portion 1 of the frame 5 and the inner wall of the body I and also with external and internal annular flanges II, 12, which lap respectively the inner wall of the plate 3 around the window opening 2, and an internal annular flange on the cylindrical portion 1 of the frame 5. The frame 5 and the retaining ring 5 are secured together with their flanges B and II clamped on the outer and inner walls around the window opening, by fastening means coacting with the lapping cylindricalportions, here shown, as screws Mextending in a direction edgewise of the frame through the lapping cylindrical portions 1, Ill. The two parts 5 and 5 are pressed toward each other, until the screw holes for the screws it come into alinement and then the screws are placed in position.

l5 and i6 designate respectively upper and lower sashes. These are preferably semi-discoidal and are formed with marginal frames, at least one of which is rotatably mounted in the window frame. Preferably the upper sash I5 is stationary and the lower sash l6 rotatably mounted.

The arcuate frame member I l of the stationary sash i5 is secured to the window stop flange 9 by screws IS. The rotatable sash member l6 and the window frame are formed with interfltting guide means for-the sash, as rib and groove. The arcuate frame memberl8 of the lower sash is formed with a channel and the cylindrical portion of the window frame 5 with the rib'20 enteringinto the channel, the channel having a U- shaped non-metallic or fibrous lining 2| embracing the rib. Also, the lower sash I6 has a semicircular extension 22 which completes the circle of the arcuate frame member l8 and which is formed with a channel for receiving the rib 20. The frame member 18 and the complemental extension 22 thereof are secured together in any suitable manner. They are here illustrated as secured together by the base 25 of a sash holder secured, as by screws 26, to the diametrically extending rail 21 of the lower or rotatable sash I6 and by screws 28 to the ends of the arcuate extension member 22. A sash holder is however unnecessary, except to prevent opening of the sash from the outside of the car, as the sash being circular will remain in any angular position about its axis.

The sash holder (Figure 2) also includes a movable part, as a latch 39, for coacting with a suitable opening in the window frame, this latch being pivoted at 3i and having a handle 32 arranged in pinch-handle relation to the base plate 25. There is a sash holder at each end of the diametrically extending frame member of the lower sash I6.

In the window shown in Figure 2, the lower sash l5, upon operating of the sash holders, can be rotated in either direction. This is of particular advantage in vehicles, as railway cars, which are hooked into the train, sometimes with one end forward and sometimes with the other end forward.

In Figure 4, a window is shown in which the lower sash I6 is rotatable in one direction only from closed position, and in this case, the base plate 25* is formed with a lug 25 which comes against a fixed stop 25 on the window frame when the lower sash is in closed position. There is a sash holder at each end of the diametrically extending frame member and one presses upwardly against its stop and the other downwardly against its stop. Obviously, upon reference to Figure 4, it will be seen that the lower sash Hi can be rotated from closed position only in an anticlockwise direction. This form of latch can be used where the same end of the vehicle is always forward. The diametrically extending members of the sash frames lap each other when the sash I6 is closed, and a suitable weather strip 5-6 is provided for sealing the joint between the lapping frame members when the rotatable sash I6 is lowered. The only bearing for the rotatable sash I6 is in the window frame in contradistinction to being on a pivot pin. A suitable curtain may be provided, but preferably the glass of the upper sash I5 is colored or darkened to obstruct the glaring light rays.

By reason of this construction, the sash is always tight, when closed, and the rotatable sash rotates without binding when a rotary force is applied thereto.

What I claim is:

1. In a window construction, the combination of a circular Window frame, part-discoidal sashes independently mounted in the frame and complemental to each other, one of the sashes being rotatably mounted at the periphery in the frame and shiftable about the axis of the frame into different radial positions relatively to the other sash and the frame, and being entirely free of, and unsecured to the other sash.

2. In a window construction, the combination of a circular Window frame, part-discoidal sashes mounted in the window frame and complemental to each other, the sashes having marginal frames,

one of the sashes being rotatably mounted in the window frame and shiftable about the axis of the window frame into different radial positions relative to the other sash and the window frame, the rotatable sash and its frame having interfitting tongue and groove means forming a bearing for the rotatable sash during its rotating movement, the interfitting tongue and groove means having a non-metallic fibrous packing means between them for holding the sash frame and the window frame out of rubbing contact during the rotation of the rotatable sash, the rotatable sash being entirely free of, and unsecured to, the other sash.

3. In a window construction, the combination of a circular window frame, part-discoidal sashes mounted in the window frame and complemental to each other, the sashes having marginal frames, one of the sashes being rotatably mounted in the window frame and having an opening and closing movement about the axis of the window frame into different radial positions relative to the other sash and the window frame, the sash frames including chordal frame members which lap each other when the rotatable sash is in its normal closed position, the chordal member of each sash being entirely free of the chordal member of the other sash and unsecured thereto.

4. In a window construction, the combination with a body formed with a circular window opening, of a window frame consisting of a split ring having a cylindrical portion entering the window opening and an external annular flange for coacting with one wall of the body around the window opening, the cylindrical portion being provided on the inner side thereof with sash guides, and a sash mounted in the window frame and coacting with the guides, and a circular split retaining ring having a cylindrical portion for entering between the cylindrical portion of the window frame and the internal cylindrical wall of the window opening. and external and internal annular flanges lapping respectively the opposite side faces of the wall around the window opening and the window frame, and means including fastening means coacting directly with the cylindrical portion of the frame and retaining ring for securing the cylindrical portions together.

5. In a window construction, the combination of a circular window frame, semi-discoidal sashes mounted in the window frame and complemental to each other, the sashes having marginal frames, each including an arcuate member and a diametrically extending chord member, one of the sashes being rotatably mounted in the window frame and having a rotatable opening and closing movement about the axis of the frame into different radial positions, the chord members of the sash frames lapping each other when the rotatable sash is in its normal closed position, the rotatable sash also having a semi-circular skeleton frame complemental to its arcuate frame member and also rotatably mounted in the window frame whereby the rotatable sash has a bearing on the window frame throughout the entire circle of the window frame, the chord member of each sash being entirely free of, and unsecured to, the chord member of the other sash.

OLIVER M. EDWARDS. 

